Today's kids are lucky to have lightweight mountain bikes with high - end tires, well - tuned suspension, and modern geometry. But what they often lack is a proper drivetrain. That's where our KWT Microshift Advent Super Short MTB 1x9 Speed 11 - 38T groupset for 20' wheels steps in. We've taken the DNA of our ADVENT mountain bike group and made every part smaller and user - friendly. It offers lighter shifting, shorter reach, and greater ground clearance, all while maintaining excellent chain retention, a durable metal construction, and a wide gear range. The shift levers are closer to the handlebar, and the lever throw per shift is 43% shorter than the competition, making it perfect for small hands. Most derailleurs won't fit 20″ wheels, and those that do aren't suitable for real mountain biking. Our Super Short derailleur has the same clutch and metal construction as our standard ADVENT and Acolyte groups, so young riders can ride hard without worrying about the chain falling off. Designed to work with an 11 - 38T cassette on 20” wheels, it provides a low enough gear to conquer mountains. We've kept all the great features of ADVENT and Acolyte when creating the Super Short version, including reliable chain retention, metric hardware, durable metal construction, direct cable routing, and evenly spaced gears. This groupset is made up of the following Microshift components: MSH - SL - M6195 - R MICROSHIFT Advent Short Reach Trigger Pro Shifter, MSH - RD - M6195S MICROSHIFT Advent Short Rear Clutched Derailleur, and MSH - CS - H093 11 - 38T MICROSHIFT Advent Short Range Cassette.

Using this groupset is easy. First, make sure all the components are properly installed on your 20' wheel mountain bike. The shift levers are designed to be close to the handlebar, so you can easily reach them with your fingers. When you want to shift gears, just pull or push the lever gently. Since the lever throw per shift is short, you won't have to use a lot of force. As for the derailleur, it will automatically adjust the chain to the right gear on the cassette. Remember, this groupset is designed for real mountain biking, so you can ride on rough terrains without much worry. But still, try to avoid extreme impacts that could damage the components. For maintenance, regularly clean the chain and the cassette with a bike - specific cleaner. Wipe them dry and then apply a thin layer of lubricant to the chain. Check the cables and derailleur for any signs of wear or damage. If you notice any issues, it's best to have a professional bike mechanic take a look. With proper use and maintenance, this groupset will serve you well for a long time.